need help identifying bantam chicks

Hi..I just got 5 bantam chicks that are supposed to be apx. 2 1/2 weeks old. I would love any help you could give identifying their breed, sex, and if the age seems correct. I have pics of them but because I'm a new member I can't post them. Any idea's how I could post pics for ya'll to see and hopefully get some info from? Thanks so much!

Wish I could help you out but I don't know a thing about bantams -- they are a little young to sex yet - in some breeds, the girls sprout tails & wing feathers quicker than the boys, so at least some of your grey ones might be girls...